Gary Lineker will no doubt get some stick from his Match of the Day colleagues when he strips down to his pants on on Saturday - but Alan Shearer has refused to wait for the big reveal.

The former Newcastle striker took to Twitter on Saturday morning to fire an early shot at the presenter who promised to host the show in his underwear should Leicester win last season's Premier League .

Shearer posted a rather unflattering picture of a rotund individual wearing a thong walking up the stairs along with the caption "looks like Gary Lineker beat me here".

Shearer is celebrating his 46th birthday and is sure to get a laugh on the special Match of the Day (Image: David Davies/PA Wire)

The 46-year-old Geordie hero celebrates his birthday on Saturday and will get a front row seat to Lineker's humiliation on national television.

Lineker too has been getting in on the fun, uploading an image of him working out with dumbbells ahead of the unveiling.

The countdown to the 55-year-old's humiliation has been an entertaining side-story for fans ever since Lineker promised to strip off should his beloved Foxes finish top of the pile in December last year.

Read More

Leicester will have to improve if they are to force the Match of the Day presenter into more awkward moments this season, having lost their opening fixture to newly promoted Hull on Saturday lunchtime.

Lineker is expected to begin the highlights show in his underwear on Saturday night before changing back in to a more familiar attire for the rest of the programme.